The two lock heads are designed for laptops and other devices, while using the same key so you can quickly secure a laptop as well as a monitor, docking station or hard drive. The primary lock head has expanding side hooks that grab on to the internal sides of the Wedge lock slot, creating a strong connection between the device frame and the lock to resist and deter theft attempts. The secondary lock head uses the trusted industry standard that's compatible with the Kensington Security Slot found on many peripheral desktop accessories. The rotating bar securely attaches to the internal wall of the device for a premium level of security. Offering the same level of cut-resistance and theft-resistance as thicker cables, the carbon steel cable with plastic sheath offers security and greater mobility. Special hinge creates great freedom of movement, eliminating awkward angles and allowing you to insert your key with complete ease.